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https://dev.mysql.com/doc/refman/8.0/en/innodb-memcached-setup.html
The flags, cas_column, and expire_time_column fields of the innodb_memcache.containers table are typically not significant in applications using the daemon_memcached plugin. Because the memcached daemon is tightly integrated with the MySQL server to ... This section describes how to set up the daemon_memcached plugin on a MySQL ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-shm-definition.html
For optimum performance, you can define a spin time for the SHM transporter (ShmSpinTime parameter); this affects both the data node receiver thread and the poll owner (receive thread or user thread) in NDB. Communications between NDB cluster nodes ...The shared memory (SHM) transporter is distinguished by the fact that signals are transmitted by writing in memory rather than on a ...
https://dev.mysql.com/doc/refman/8.0/en/connection-interfaces.html
Linux or Solaris should be able to support at least 500 to 1000 simultaneous connections routinely and as many as 10,000 connections if you have many gigabytes of RAM available and the workload from each is low or the response time target ...Network ... This section describes aspects of how the MySQL server manages client ...
https://dev.mysql.com/doc/refman/8.0/en/group-replication-limitations.html
Note that the limitations and issues described for multi-primary mode groups can also apply in single-primary mode clusters during a failover event, while the newly elected primary flushes out its applier queue from the old primary. The ... Limit on ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-programs-ndb-top.html
With color support enabled, the graph display shows OS user time in blue, OS system time in green, and idle time as blank. For measured load, blue is used for execution time, yellow for send time, red for time spent in send buffer full waits, and ...
https://dev.mysql.com/doc/refman/8.0/en/create-table-check-constraints.html
CHECK constraints are evaluated for INSERT, UPDATE, REPLACE, LOAD DATA, and LOAD XML statements and an error occurs if a constraint evaluates to FALSE. Prior to MySQL 8.0.16, CREATE TABLE permits only the following limited version of table CHECK ...
https://dev.mysql.com/doc/refman/8.0/en/group-by-modifiers.html
In this case, each time there is a change in value in any but the last grouping column, the query produces an extra super-aggregate summary row. Following each set of rows for a given year, an extra super-aggregate summary row appears showing the ...
https://dev.mysql.com/doc/refman/8.0/en/installing-source-distribution.html
To install MySQL from a standard source distribution: Verify that your system satisfies the tool requirements listed at Section 2.8.2, “Source Installation Prerequisites”. Configure, build, and install the distribution using the instructions in ...Obtain a distribution file using the instructions in Section 2.1.3, “How to Get ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-install-linux-binary.html
We recommend that you do this when installing or upgrading NDB Cluster, even if you plan to use only one of them, since this saves time and trouble in the event that you later decide to change from one to the other. Change location to the directory ... This section covers the steps necessary to install the correct executables for each type of Cluster node from precompiled binaries supplied by ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-programs-ndb-index-stat.html
--connect-retries Command-Line Format --connect-retries=# Type Integer Default Value 12 Minimum Value 0 Maximum Value 12 Number of times to retry connection before giving up. --delete Command-Line Format --delete Delete the index statistics for the ...This includes cache version and age, number of index entries per partition, and memory consumption by ...